ALL DATA ARE AT LOCAL TIME

During winter months,
cold and ice may result in inaccurate real-time gage height and
streamflow data. Adjustments or deletions of this data can only be done
after detailed analysis.

--- Predefined displays --- Group table bySelect sites by number or name

Daily Streamflow Conditions

Select a site to retrieve data and station information.

Explanation

High

> 90th
percentile

76th - 90th
percentile

25th - 75th
percentile

10th - 24th
percentile

< 10th
percentile

Low

Not ranked

The colored dots on this map depict streamflow conditions as a
percentile, which is computed from the period of record for the
current day of the year. Only stations with at least 30 years of
record are used.

The gray circles indicate other stations that were not ranked in
percentiles either because they have fewer than 30 years of record or
because they report parameters other than streamflow. Some stations,
for example, measure stage only.

Current data typically are recorded at 5- to 60-minute intervals,
stored onsite, and then transmitted to USGS offices every 1 hour,
depending on the data relay technique used. Transmission times may be
more frequent during critical events. Data from current sites are
relayed to USGS offices via satellite and are available for viewing
within minutes of arrival.